/*
 * Copyright (C) 2024 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.android.tools.idea.diagnostics

import com.google.wireless.android.sdk.stats.VirtualizationEvent
import com.google.wireless.android.sdk.stats.VirtualizationEvent.ContainerType
import com.google.wireless.android.sdk.stats.VirtualizationEvent.VmType
import org.junit.Assert.*
import org.junit.Test
import java.util.concurrent.CountDownLatch
import java.util.concurrent.TimeUnit

class VirtualizationDetectorTest {

  class TestHandler : VirtualizationHandler {
    var vm: VirtualizationEvent.VmType? = null
    var container: VirtualizationEvent.ContainerType? = null
    var callCount = 0
    val latch = CountDownLatch(1)

    override fun onVirtualizationDetected(vm: VirtualizationEvent.VmType, container: VirtualizationEvent.ContainerType) {
      this.vm = vm
      this.container = container
      callCount++
      latch.countDown()
    }
  }

  @Test
  fun testVirtualizationDetection() {
    val handler = TestHandler()
    VirtualizationDetector(handler).detectVirtualization()
    val success = handler.latch.await(6, TimeUnit.SECONDS)
    assertTrue(success)
    assertEquals(1, handler.callCount)
    val vm = handler.vm!!
    val container = handler.container!!
    assertNotEquals(VmType.VM_ERROR_TIMEOUT, vm)
    assertNotEquals(VmType.VM_ERROR_CANNOT_DETECT, vm)
    assertNotEquals(ContainerType.CONTAINER_ERROR_TIMEOUT, container)
    assertNotEquals(ContainerType.CONTAINER_ERROR_CANNOT_DETECT, container)
  }
}